<VV> CCs for 9.25:1

[Mikeamauro at aol.com]

I'm having a set of heads welded and machined to have a quench area thickness 
of .032 (the thickness of a stock head gasket). I'll be using stock base 
gaskets, which should result in little or no deck clearance. The pistons are flat 
top, .040 overbore.  The combustion area I'm measuring--to start with--is from 
the gasket sealing surface inward towards the head (in other words, just the 
area within the heads). Can anyone tell me the CC requirement of the (head 
portion of the) combustion chamber to (eventually, with a .032 head gasket) 
arrive at a compression ratio of 9.25:1?
Thanks in advance for any help offered,
Mike Mauro